Information processing apparatus, information processing method, and non-transitory computer readable media

Abstract

An information processing apparatus segments a plurality of measurement points for each segment of a construction in a two-dimensional image based on three-dimensional position information of the plurality of measurement points included in the construction. The apparatus selects a plurality of pieces of displacement information including displacement amounts of the plurality of measurement points included in a preset period and a set range for the construction. The apparatus calculates a correlation index value representing a correlation for at least one of the segments included in the set range based on the selected displacement information and environment information indicating a state of an environment around the set range. The apparatus generates a determination condition for evaluating soundness of the construction for the at least one segment based on the correlation index value of the at least one segment.

1 . An information processing apparatus comprising:
 a memory configured to store instructions; and   a processor configured to execute the instructions to:   segment a plurality of measurement points for each segment of a construction in a two-dimensional image based on three-dimensional position information of the plurality of measurement points included in the construction;   select a plurality of pieces of displacement information including displacement amounts of the plurality of measurement points included in a preset period and a set range for the construction;   calculate a correlation index value representing a correlation for at least one of the segments included in the set range based on the selected displacement information and environment information indicating a state of an environment around the set range; and   generate a determination condition for evaluating soundness of the construction for the at least one segment based on the correlation index value of the at least one segment.   
     
     
         2 . The information processing apparatus according to  claim 1 , wherein
 the processor configured to further execute the instructions to:   evaluate soundness of the construction by using the determination condition for the at least one segment, and   the set range includes a plurality of first ranges to be evaluated and at least one second range for generating the determination condition, and   the correlation index value includes a plurality of first index values for the at least one segment included in the first range and a second index value for the at least one segment included in the at least one second range, and   the determination condition for the at least one segment is generated based on the second index value for the at least one segment, and   the soundness of the construction is evaluated for each of the at least one segment included in the first range by using the determination condition for the associated segment.   
     
     
         3 . The information processing apparatus according to  claim 2 , wherein calculating a correlation index value includes:
 integrating, for each segment, displacement information including a displacement amount of a measurement point included in the at least one second range in the period and generating integrated displacement information including the displacement amount of the measurement point for each segment,   calculating the first index value for the at least one segment based on the displacement information of the measurement point included in the first range in the period and the environment information, and   calculating the second index value for the at least one segment based on the integrated displacement information for each of the segment in the period and the environment information.   
     
     
         4 . The information processing apparatus according to  claim 1 , wherein
 the processor configured to further execute the instructions to:   select a displacement model representing a relationship between the displacement information and the environment information based on structure information indicating a structure of the construction, and   calculating a correlation index value includes   generating corrected displacement information by using the selected displacement model and the displacement information of the set range in the period, and   calculating the correlation index value based on the corrected displacement information in the set range in the period and the environment information indicating the state of the environment around the set range.   
     
     
         5 . The information processing apparatus according to  claim 4 , wherein
 the plurality of displacement models are provided, and   the plurality of displacement models include different displacement models according to a type of the segment.   
     
     
         6 . The information processing apparatus according to  claim 4 , wherein
 the corrected displacement information includes a corrected displacement amount obtained by correcting a displacement included in the displacement information by using the selected displacement model or a parameter value that is a value of a parameter determined based on a displacement in the displacement information and included in the selected displacement model.   
     
     
         7 . The information processing apparatus according to  claim 1 , wherein
 the processor configured to further execute the instructions to:   exclude the measurement point included in a non-attention region that is a region out of attention, from the plurality of measurement points in the construction in the two-dimensional image in accordance with an instruction of a user, and   selecting the plurality of pieces of displacement information includes selecting the plurality of pieces of displacement information including displacement amounts of the plurality of measurement points included in the preset period and the set range for the construction among the plurality of measurement points after exclusion.   
     
     
         8 . An information processing method performed by one or more computer, the method comprising:
 segmenting a plurality of measurement points for each segment of a construction in a two-dimensional image based on three-dimensional position information of the plurality of measurement points included in the construction;   selecting a plurality of pieces of displacement information including displacement amounts of the plurality of measurement points included in a preset period and a set range for the construction;   calculating a correlation index value representing a correlation for at least one of the segments included in the set range based on the selected displacement information and environment information indicating a state of an environment around the set range; and   generating a determination condition for evaluating soundness of the construction for the at least one segment based on the correlation index value of the at least one segment.   
     
     
         9 . A non-transitory computer readable media storing program causing one or more computer to perform:
 segmenting a plurality of measurement points for each segment of a construction in a two-dimensional image based on three-dimensional position information of the plurality of measurement points included in the construction;   selecting a plurality of pieces of displacement information including displacement amounts of the plurality of measurement points included in a preset period and a set range for the construction;   calculating a correlation index value representing a correlation for at least one of the segments included in the set range based on the selected displacement information and environment information indicating a state of an environment around the set range; and   generating a determination condition for evaluating soundness of the construction for the at least one segment based on the correlation index value of the at least one segment.